50001601111660 has 96 divisors (see below), whose sum is σ = 115530634985472. Its totient is φ = 18026802097920.

The previous prime is 50001601111613. The next prime is 50001601111661. The reversal of 50001601111660 is 6611110610005.

It is a super-2 number, since 2×50001601111660² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50001601111661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39980989 + ... + 41212651.

It is an arithmetic number, because the mean of its divisors is an integer number (1203444114432).

Almost surely, 2^{50001601111660} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50001601111660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57765317492736).

50001601111660 is an abundant number, since it is smaller than the sum of its proper divisors (65529033873812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50001601111660 is a wasteful number, since it uses less digits than its factorization.

50001601111660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233263 (or 1233261 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 28.

Adding to 50001601111660 its reverse (6611110610005), we get a palindrome (56612711721665).

The spelling of 50001601111660 in words is "fifty trillion, one billion, six hundred one million, one hundred eleven thousand, six hundred sixty".